| 摘要 |
A fluid machinery capable of increasing the durability of the blades thereof and suppressing the vibration and noise from occurring on the blades thereof, comprising a rotatably supported blade supporting part and a plurality of blades (21) formed on the blade supporting part at a plurality of circumferential positions by projecting in outer radial direction, each of the blades (21) further comprising a first blade element extending from a first mounting position of the blade supporting part in outer radial direction, a second blade element extending from a second mounting position of the blade mounting part in outer radial direction, and a third blade element connecting the first and second blade elements to each other, wherein the first and second blade elements are formed by projecting from the blade supporting part in the outer radial direction and connected through the third blade element, whereby the blade (21) can be suppressed from being damaged when an external force is applied thereto and the durability of the blade (21) can be increased and, because a stress acting on the third blade element can be reduced, even if loads applied to the first and second blade elements are varied, a deflection occurring on the blade (21) can be reduced. |
